Door closer



Sept. 12,1933. RSPOTTER 1,926,558:

DOOR CLOSER Filed Oct. 31, 1930 2 Sheets-Sheet 1 Z9 -1- 2 a 1 w 11%" F17. Z a "1 h 0 22 Q I Z6 5:31

50 90 31 27 28 INVENTOR H\ ATTORNEY Sept. 12, 1933. I R. s. POTTER 1,926,558

DOOR CLOSER Filed Oct. 31, 1930 2 Sheets-Sheet 2 INVENTOR ATTORNEY Patented Sept.12,1 933 j 1 9 55 ,u' T M"E O FICEIII signer. to The Yale 8:v Towne Manufacturing" 1 Company, Stamford, Gonna? y I s 1 Applicationflctober 31,1930; serial No'. 452,412 l 4 Claims; (cine-+59) This invention relates to a door closer, and cut out at-p'oints 19 and 20 for the accommodation more especially to a door closer or"; the inherently of. the'lug portions 21 *of an actuating sleeve 1 i reversible type. i I V 22 which is thereby secured thereto. It' will'be' More particularly'my invention is an improvereadily understood that by thisarrangement, the 5 mentover door closers of the type disclosed by s'1eevey22, the shaft 13 and the arm 15, will 9 Henry in his Patents Nos. 962,143. and '962,l44.-*rotate simultaneously upon' 'movement of the arm'.-

datedJune 21, 1910. Refe'rring'to those patents, '15 whenihe door closer is operatedin either it will be noted that Henry utlizes a vertically the closingor opening direction] 1 s 3.. moving clutch sleeve whichis engageable with The'sleeve 22'ispreferably'constructed'of sheet 10 either one of a pair of winding members, to wind metalfand has a lug-portion 23 formed thereon. (35

1 (1001 05 Sp 0 t at h 100 010881 Of course; it-will be readily understood that this may operate in the usual manner well known lug may be formed in any manner and may injthe art. y I becast-onto the sleeve or'secured by a screw 1 My. invention is an improvement overthel'to the--sleev for rthe particular purpose d e- 15 P t 0f Henry in that-ii? eliminates h D scribed hereinafter. I Mounted upon this sleeve s ity f frict y a very's mp e a dingenious s a clutch member 24 having a pai'r of: clutch ement of elements. 1 armsZS-located at either endof the same. 1 This It discloses a further improvement over'I-Ienry clutch '24 is'a1so quippedwith a slot 26 which they prior art in the arrangement forfthe cooperates with the lugportion 23of the sleeve H mounting of the spring and the: limiting of'the 22 for apurpose'described hereinafter. ov e of theFWindiIlg d and the p The door closer is formed with a screw threaded t i arr n m n beinc f ev y impl n ortion 27 intoj which is fitted abearing pcreffective type. Other improvements will be --"tion 28,"wliich is in'screw threadedrelationship pp f er a reviewer" the specification and to-the-po'rtion zq and is secured thereto. The up- 5 d awi s" wherein a" pr d mod fi o ward'end ofthe bearing portion 28 is also screw V y invention is h w and be In nireeeee at for theaccommoda'tion ofawash drawings; Fig-T1 is a seetional'view Of' y 9 I er'holdi-namember 29* which prevents the flow I Closer Showing the invention inone of its OD- orsplash of the liquidin an upward directionas atin p si i s. Fi 2715a v w similar to "willbereadily-understoodby those skilled in the 30 Fig; 1 with certain add t on parts sections! art The part 28-forms a'thrust bearing 29upon 3? Fi 3 is a pla view of y do c s r snowin which a winding-disc '30 is adapted to rotate. h rlelallion 0f closing m ihereiior This-"disc"30 has a downwardly extendingifiange 4 i a p and Side view'of any sjdi {forming a clearance 31 betweenthewinjding disc 5 is a p a V ew of the one; of the windi n'g "30 and the-Shearing member 28, this clearance discs, while Fig. 6 is a sectional view thereof Fig. 1 being SQ designed that the flange of disc 30 will 7 isa view of the spring I use in my door closer. rub again sfi -the bearing mber .28.. upon any' 818 aiseeiiienal 3 P View the driving lateral shiftingof the disc'30, in order to prevent Sleeve a d 9 s an elevation n 1 v 'contactof the disc withthe ."sleeve member 22 0f the clu c d v e Carried e y- 1 about which it is centered, and about, which it is 40 Referring w mOTe particularly to the dTaW- adapted to be rotated as willbe described pres-"- ings, reference numeral 10 indicatesa door closer ent1y casing of the usual type, which is secured to The upper pdrtion of the door closer is equipped the door by a pair of bracket members 11 held Witha i g ti 2 t which an upper by a series of screws forwhich the holes 12 are winding disc 0a cooperates in the Same manner designed. The closer utilizes a regulation type of operating shaft 13 and checking mechanism 1 1 p, ,memb Br 28 I s p I gf ggf fggg g g g gi i ig gg m the m and Looking now at Fi s. 1, 5, andfi, it will be ob- A 'door closer arm 15 is secured to the door Served that each of thediscs'go equlpped' as the lower disc'30 cooperates with the bearing" v closer shaft 13 by a washer 16 and a nut 17 with cutout portion 33 adapted'to 9, L

and is adapted to rotate therewith. An actuat w the extended elememszfi on the Clutch 24 i mg disc 18 (see Fig. 4) is mounted u on the door similar to th ofthe H n y. a t closer shaft and is equipped with 3, eries of 962,143. Rotation of the sleeve 22 in either'direci teeth 19 with which cooperates a pawl .20 cartion, will Operate thiOUgh'the 111gv 23 to m t e ried by the door closer arm 15'. The disc 18 is c1utch member 24 either upwardly into co-actiom in Fig.6 and consists of a helically wound'spring 35 which has two ends '36, shaped as shown.

Each of these ends is adapted to enter a cut-out portion 37a in its particular winding disc 01' 30a. As will'be noted in Fig. 1, each end 36 will extend beyond the portion 37a and into cooperation with lugs 37 which are secured to the closer casing in any desirable manner. it will be readily understood that if the upper winding disc 30a is, actuated vby'rotation of the sleeve 22 it will rotate the spring end 36 away fromthe upper lug 37. At the same time the winding of the spring will force itsother end 36 into coop-,

'eration with the lower lug 37 so as to'limit the movement of this lower end and cause continued winding tensionof the spring,.this tension being utilized in a mannerwell known in the art.

While my invention is not basic in character, it has made practical the type of reversible door closer disclosed by Henry. This type of door closer has now become commercially successful because it is operable with a minimum of friction and witha minimum numberof operating .parts arranged in an efiicient manner. vention has considerable merit, therefore, and while I have disclosed a specific; embodiment of the same, it should beunderstood that variations ,withinthe scope of the appended claims will readily occur to one'skilled in the art.

Iclaim: v

. 1; In a door closer, an operating shaft,a sleeve adapted to rotate with said shaft, apairof spring winding discs mounted coaxially with said sleeve and extending about the same, a pair of bearings for said discs adapted to maintain the same .ggainst outward thrust while permitting rotation bout said sleeve, said bearings being arranged to prevent contact between said sleeve andeither of said discs.

. 2. In a door closer, an operating shaft, a sleeve adapted to rotate with said shaft, a pair of spring winding discs mounted coaxially' with said sleeve and extending about the same, a spring sur-' 1 rounding said sleeve and bearing ateach end on said discs,said spring being secured forwinding i movement by either one of said discs relatively to the other disc, means carried by said sleeve for rotating one or the other of said discs depending upon the directionof rotation of said shaft, a pair of bearings for said discs adapted to maintain the same against outward thrust and for rotation about said sleeve, said bearings being arranged to prevent contact between said sleeve and either of said discs, whereby rotation of the sleeve and one of said discs will be free of frictional resistance by the stationary one of said sleeves.

' 3. In a door closer, an operating shaft, a sleeve adapted to rotate with said shaft, a pair of spring winding discs mounted coaxially'with said sleeve and extending about the same and having vertical flanges spaced parallel to the cylindrical face of said sleeve, a spring surrounding said sleeve and bearing at each end on said discs, said spring being secured for winding movement by either 0f said discs relatively to the other disc, a clutch 'member mounted about said sleeve and adapted to be actuated thereby for rotating one or the other of said'discs dependingupon the direction of rotation of said shaft, a pair of bearings for said discs adapted to maintain the same against outward thrust and for rotation about said sleeve so as to be available foractuation bysaid'clutch mernber, said bearings being arranged however to prevent contact between said sleeve and either of said discs while so maintaining them, whereby rotation of the sleeve and one of said discs will be free of frictional resistance by the stationary one of said sleeves:

4. In a door clcser, an operating shaft, a sleeve adapted to rotatewith said shaft, a pair of spring winding discs mounted coaxiallywith said sleeve 'andextending about the same, a spring surrounding said'sleeve and bearing at each end on said discs, said, spring, beingsecured for .winding movement by either of said discs relatively to the other disc, a clutch member mounted about said sleeve and adaptedrto be actuated thereby for rotating-one or the. other of said discs depend- ]ing uponthe direction of rotation of said shaft, a pair of bearings for said discs adapted to maintain the'same against outward thrust and for rotation about said sleeve so as'to be available for actuation by said clutch member, said bearings being arranged howe'ver to prevent contact between saidsleeve and either of said discs While soniaintainingthem/whereby rotation of the .sleeve'and one of said discs will be free of frictional resistance by the .sleeves.

:RO'BERT s; POTTER.

stationary one of said 

